16. In Amir's coin collection, the number of dimes is one more than three times the number of nickels. The total number of
nickels and dimes is 69.
a) Amir also has 40 quarters in his collection. How many more
dimes than quarters does he have? How many more quarters
than nickels does he have?
b) Explain why you can solve this problem without knowing
the value of a nickel, dime, or quarter.

54 km / hours

step-by-step explanation:

we need to convert seconds to hours

60 seconds = 1 minutes

60 minutes = 1hour

15 m         60 second   60 minutes

  * *         = 54000 meters/ hour

second     1 minute             1 hour

now we need to convert meters to km

1000 m = 1 km

54000 m       1 km

*   = 54 km / hours

hour               1000m

the multiples of 15 are 15, 30,45, 60, 75, 90, 105, 120, 135, 150, 165, 180, 195,   210, 225, 240, 255, 270, 285, 300, 315, 330, 345, 360, 375,   390, 405, 420, 435, 450, 465, 480, 495, 510, 525, 540, 555, 570, 585, 600, 615, 630, 645, 660, 675, 690, 705, 720, and 735.

the factors of 15 are 1, 3, 5, and 15.

hope that , fam!

-une, your fren : )

hope this is what you were asking for!

step-by-step explanation:

13cm

step-by-step explanation:

(apex)